Bread wrapping and sealing machine.



I F. STREIGH & P. E. FRANKIE. BREAD WRAPPING AND SEALING MACHINE.

APPLICATION FILED NOV.19, 1913.

Patented SeptiS, 1914.

4 SHEETS SHBET 1.

[6&17185566 J 6% P. STREIGH & P. E. FRANKE.

BREAD WRAPPING AND SEALING MACHINE.

APPLICATION FILED NOV. 19, 1913.

1,1 1 0,083. Patented Sept. 8, 1914.

4 SHEBTSSHEET 2.

F. STREIGH & P. E. FRANKB.

BREAD WRAPPING AND SEALING MACHINE.

APPLICATION FILED NOV. 19, 1913.

1,1 1 0,083, Patented Sept. 8, 1914.

4 SHEETS-SHEET 3.

\ 'j a 1 dl Lz/wsseo 1 beg/M0113 I. STREIGH & P. E.FRANKB. BREAD WRAPPING AND SEALING MACHINE.

z y m mag/W K ae/ m m r w lg APPLICATION FILED NOV. 19, 1913.

TEQS

FRANK STREICHAND PAUL E. FRANKE, 0F JOLIET ILLINOIS, ASSIGNORS T0 UNION WRAPPING MACHINE COMPANY, OF JOLIET, ILLINOIS, A CORPORATION OF ILLINOIS.

BREAD WRAPPING AND SEALING MACHINE.

To all whom it may concern:

lie it known that we, FRANK S'rnnIoH and Farr. E. Fmxun. both citizens of the United States, and residents of Joliet. county of 'ill. and State of Illinois. have invented certain new and useful Imprm'emei'its in Bread rapping and Sealing Machines, of

which the following is declared to be a full,

clear. and exact description.

This invention relates to wrai 'iping and sealing machines, and in its present form has been designed for wrapping and sealing commodities such as bread, or other like goods. although it will be perfectly obvious from the following specification that'it may be employed for wrapping and sealing many other articles.

The primary object of this invention is to provide a wrapper and sealer of improved construction. one which is simple in construction and operaticn and one which is capable of folding the ends of a wrapper in such a manner that the folds may be secured together by the application of heat thereto, when paratfined or waxed paper wrappers are used, or by the application of paste or glue when other forms of wrappers are used to contain the commodity.

The invention consists in the several novel features of construction, arrangement'and combination of parts hereinafter fully set forth and claimed.

One embodiment of the invention is clearly illustrated in the drawings accompanying this specification of which Figure 1, is a plan of a machine. containing the preferred form of the invention; Fig. 2, is a side elevation thereof; Fig. 3, is a longitudinal section taken on the line 3--3, Fig. 1, showing the operating parts in a different position: Fig. is a detail, vertical cross-section taken on the line 44, Fig. 1-; Fig. 5. is a detail, vertical cross-section taken on line 5-4), Fig. 1; Fig. (3, is a perspective view of a wrapper showing the first fold:

Fig. 7. is a similar view showing the second fold; Fig. 8, is a similar view showing the third fold, and Fig. 9, is a similar view showing the fourth and last fold.

In the embodiment of the invention illustrated in said drawings, 10, designates frame work upon which is supported a table 11, comprising two horizontal leaves 1.2, 19 which carry the folding and sealingvmachzv nisms. and which are capable of lateral ad- Specification of Letters Patent.

Application filed November 19, 1913.

Patented Sept. 8, 1914:. Serial No. 801,783.

justrnent with respect to each other, to accomlnodate parcels or articles of various lengths. Upon the forward or receiving end of the table is mechanism forfolding the first and second folds, beyond which is the means for making the third fold, and farther on is the mechanism for making the fourth and last fold. In order that these several instrument-ahties may be clearly understood, we shall proceed to describeeach in detail.

The first f0Z(Z.Projecting upfrom the table 11, are two oppositely disposed, vertically reciprocatory, bottom flap folders 12%, each having a curved upper edge, (see Fig. and each guided to move in a vertical direction; each folder 18, is shown as formed with a vertical slot 14, through which ex.- tends a screw 15, secured in the outer edge of the table leaves 12, 12, and the head of said screw holds the folder in position against the side of the table. The lower end of each bottom flap folder 13, is connected to a lever 16, pivoted upon a bracket 17, secured to the underside of the table and said levers 1a, are connected to an operatinglever, here shown in the form of a hand lever 18, pivoted to a bracket 19, secured to the underside of the leaf 12. The. connection between the lovers 16, and hand lever 18, is shown in the form of a transversely extending rod 20, extending through the levers 16, 18, and secured against lateral movement with respect to the levers, by means of collars 20, one on either side of the hand lever 18. The hand lever has a slot 18, for the rod 20. Depression of the levers 16, 18, acts to draw down or lower the bottom flap folders. Tension springs 21, one attached to each lever 16, and to the table, act to return the levers to raised position when released.

' The function of the folders 13, is to fold up the bottom flaps, a, of the wrapper A, against "the ends of the article, contained in the wrapper (see Fig. 6.), and this operation is performed as folloWs:-The article, for instance a loaf of bread, is p'lacethon a rec-' tangular sheet of paperv (preferably paraffined or waxed paper) .and the same is folded around the loaf, bringing the edges 1 past each other at the bottom of the leaf. The loaf with its wrapper thus folded around it, is placed over thefiap folders 13, and pressed down to the table; the folders 13, fold up the bottom flaps a, of the wrap per, bringing them against the ends of the loaf, as seen in Fig. 6, and the loaf is held in this position while the first side fold is made.

T he first side f0Zd.-In front of thebottom flap folder 13, and in alinement therewith are two side flap folders 22 (see Figs. 2 and 3), each of which is supported and guided by a bracket 23, secured to the upper face of the table, and each side flap folder is guided to move toward and along the end of the loaf. Each folder 22, has a longitudinally extending slot 24, through which extends a bolt 25, secured in the bracket 23, and said folder rides on said bolt in moving through its operative strokes. One extreme end of each side flap folder 22, is connected to a rock lever 26, pivoted to a depending arm 27 of the bracket 23, and receives its motion therefrom, and in operation said rock lever 26, is moved from the position seen in Fig. 2, to that seen in Fig. 3, and back again to force the side flap folder 22, across the end of the loaf and fold the protruding side flap 5, thereacross, as seen in Fig. 7. The end of each rock lever, opposite its connection with the side flap folder 22, is provided with a ll shaped slot 28, through which err by vertical pins tends the rod 20, that connects the levers 16, 13, and Said rock levers 26, are actuated by said hand lever through the hand lever con nection 20-.

Referring to Fig. 2, the vertical part of the U slot 28, permits a certain amount of downward movement of the operating lever and bottom flap folders, before the operating lever begins to move the rock levers and side flap folders, whereby the tops of the bottom flap folders may be lowered sufiiciently to permit the side flap folders to pass over them and across the ends of the loaf; the bottom flap folders holding the bottom flaps in place until the side flap folders have begun to fold over the side flaps referred to. This side flap fold is made by depressing the hand lever, after the loaf of bread with its wrapper has been placed upon the table between the bottom flap folders, as herebefore explained.

The second side flap fold or third fold- Beyond the bottom flap folders, 13, are two horizontally swinging wings or second side flap folders 29, which extend across the table and are pivotally supported thereon or pivot members 30, secured in the table. Each wing or side flap folder 29, is spring pressed into position across the table by a spring 31, surrounding the pin 30, and having one end fastened to the table and the other pressing against the side of the wing; A stop in the form of a screw 32, lies in the path of each wing and arrests its movement (caused by the spring) so as to hold it across the table in position to be struck by the loaf when moved past it.

The bottom and first side fold having been made, the operator, while holding the operating lever depressed, moves the loaf along the table and past the wings, which are thereby swung back into alinement with the bottom flap folders, and as the loaf passes them they engage and fold back the second side flaps 0, to the position seen in Fig. 8, holding them in such position until the next operation of the machine. After the leaf has been moved past the wings, the springs 31, return the wings to normal position.

The top flap f0ZcZ.-Beyond the wings 29, are the top flap folders 33, which, as shown, comprise vertical plates extending in alinement with the bottom and first side flap folders, and having angularly disposed flanges 34, projecting outward and laterally therefrom (see Figs. 1 and 4:). Each top flap folder is carried by a pair of movable bars 35, (see Fig. 2.) pivotally secured thereto and pivotally connected to a side wall section 36, secured to the table in alinement with the top flap folders- The top flap folders 33, are operated from the levers 16, 18, by links 37, here shown as connected to the uppermost bars 35, and to the levers 16, at 38. Normally, said top flap folders occupy the position seen in Fig. 2, but when the operating lever is depressed to make the first side flap fold, the rear ends of the. levers 16, are raised and the top flap folders lifted to the position seen in Fig. 3, the same being somewhat above the top of a loaf of bread which is to be wrapped, The lever is held in its depressed condition until the loaf has been moved past the second side flap folders 29, and to a position between the top flap folders, with the top flaps 0, pro jecting under the same, whereupon "the oper ating lever is released or raised, the links 37, are drawn down,the bars 35, swung down, carrying with them the top flap folders, which fold down the topflaps against the others, as seen in Fig. 9.

This completes the flap folding operations. Beyond the wall sections 36, and in alinement therewith, are heat applying members 39, which are secured to the table and comprise heating plates and some form of heating means (preferably electric) and below said heat applying meinbers39, is a bottom heat applying member l0, whose upper face is approximately flush with the upper face of the table. and said bottom heating member is secured to the leaf 12, and extends under the end flap heating members 39. Beyond the heat applying plates are cooling plates 50, between which the wrapped and sealed loaves are moved after the flaps have been heated to partly melt the paraffin, and said cooling plates hold the flaps together and against the ends of the loaf until the paralliu has cooled and set.

To accommodate difierent lengths of loaves or other articles to be wrapped and ealed, the table is made laterally adjustable, and as one set of flap folders and end flap sealer is carried by each leaf, the set carried by the leaf 1%, may be moved toward or away from the other set to vary the distance between them. The adjustment of the table and parts carried thereon, comprises means as follows. The'supporting frame 10, has slotted cross bars, one of which is seen at all, to which is secured the leaf 12. Sliding in each of the slots of said cross bars 41, is a bar 42, secured to the movable leaf 12 and having rack teeth 43, on its underside, meshing with the teeth of a toothed wheel 4-5:, on a rod 45, jonrnaled in the frame 10. A hand wheel as, on said rod furnishes means for turning the rod to rotate the toothed wheels and move the rack bars and leaf secured thereto.

The rod 20, which connects the hand lever with the flap folder levers 16, and rock lever 26, protrudes beyond the rock lever 26, on the movable leaf to permit lateral adjustment of said leaf without disengaging the rock lever from said rod; The flap folding levers 16, hand lever 18, and rod 20, may comprise one form of operating means or mechanism for actuating the flap folders, and if desired, may be in the form of a hand operated lever or foot power operated lever, as desired.

From the above description it is readily apparent that loaves of bread or other articles may be wrapped and sealed with ease,

. with neatness and with great rapidity.

When parafined paper wrappers are used, the heat of the heat applying plates serves to heat and partly melt the paraffin, and because of the pressure of the cooling plates.

against the flaps, the latter are'secured together when cooled, thereby sealing the contents and dispensing with string or other means for tying the wrapper on the loaf.

More or less variation of the several details of construction are possible without departing from the spirit of this invention and we desire, therefore, not to limitourselves to the exact form shown and described, but intend in the following claims, to point out all of the novel features disclosed herein.

o claim as new and desire to secure by Letters Patent:

1. A wrapping machine, comprising a table for receiving the articlesto be wrapped, oppositely disposed, bottom flap folders, first side flap folders and top flap folders sup-- ported thereon, an operating lever and operative connections between said flap folders and operating lever, there being a limited amount of lost motion in the connections between the first side flap folders and operating lovers, whereby the bottom and top flap folders may be actuated simultanefor each folder,

ously, and the first side flap folders may be actuated thereafter by and from said operating lever.

52. A. wrapping machine, comprising a table for receiving the articles to be wrapped, oppositely disposed, vertically reciprocable, bottom flap folders, first side flap folders movable thereacross, and vertically reciprocable, top flap folders, anoperating lever, operative connections between said bottom flap folders, side flap folders and operating lever on one side of its fulcrum, and operative connections between said top flap folder and said operating lever on the other side of its fulcrum.

3. A wrapping machine, comprising a table for supporting the articles to be wrapped, oppositely disposed bottom flap folders, first side flap folders and top flap folders supported by said table, operating mechanism therefor, and transversely ex tending, oppositely disposed second side flap folders, fulcrumed between their ends upon said table between the bottom flap folders and top flap folders, and lying in the path of movement of the article from the bottom flap folders to the top flap folders.

4. A wrapping machine, comprising a table for receiving the articles to be wrapped, oppositely disposed bottom flap folders normally projecting above said table, and guided to move down therefrom, a pair of oppositely disposed, first side flap folders supported on said table in alinement with the bottom flap folders, manually actuated levers fulcrunied below the table, and connected to said bottom flap folders, a rock ever connected to each side fiap folder, and connecting means on said levers engaging said rock levers, and operating to rock the rock levers and therewith reciprocate the first side flap folders over the bottom flap folders to fold the first side flaps across the end of the article.

5. A wrapping machine, comprising a table for receiving the articles to be wrapped, oppositely disposed, bottom flap folders at the sides of the table, each having means for guiding it to move vertically manually operated, operating means fulcrumed at the underside of the table and connected to said bottom flap folders, and a spring for raising said operating means and yieldingly holding the same in raised position and therewith holding the bottom flap folders in raised position to engage and fold up the bottom flaps of the wrapper.

, 6. A wrapping machine comprisingatable for receiving the articles to be wrapped, a

pair of oppositely disposed, flat, first side flap folders, each having a longitudinally extending slot, :1 support extendin through each slot, said folders being capa le of reciprocating on said supports, rock levers, one

and connected to one end tliereoi and operating means for rocking saiel rock levers, there beingalimited anal connected thereto at one end, levers con-- 4 ed to and actuating the bottom flap folclere and opera and rock levers having a limited .onnt oi lost motion, hereby the lerers be cletnreseecl to ly lower the botflap "foldei in advance of the side Flap Wrapping mecliine comprisi" a receiving thee. uclesto be 'ly lieposedflac or F r disposed F 'nle flap fol a longituc ext e iding 11. ii ea ci e "p folders being reci le eon, rocl: levers one or each p i 1e1 and conneoecl thereto at one rock l for-inc l with I A neclianis n. apfolo '3 ineans extend ed slots of the reel: Kl for me purpose Wrapping Kll" 'ing the etion ole live connections between said I tlie top nap 1,1 tone-e folders, comprising a pair of oarallel pivotally supported oars pivotally connected to the folder a link connected to one barot each pair, anol a lever for reciprocating the link.

12, A wrapping machine, comprising a table for receiving the articles to be Wrappecl, oppositely disposed bottom mp tolrlers first flap folders and top flap folders one set at each. side of the table and in substantial elinement with each other, operet" ing means connected therewith ancl operat ing to simultaneously depress the bOt'liQ folders, move the first to fol there above, and raise the top flap olele ii Wrapping machine, con ari'? table for receiving the articles to 3 I i disposed; cotter;

:Eolrlere and t each sicle of the t alinement with eacn on r,

between their onrlo on below the table co'anectin ever and bottom .fi'e l. e r i and ilffae si e mp ioiclei one s, or;

fleeting ice p folder the Om ii MU i Ilflt 1 .1: 11 J. 1 i. sioe OJ. mole, an c owe coonel on aetweeo sec 7 w i v M 1 U L- 1 n5 lei ano tne Gellwirl con ieetion with one ill-i tom, first side,

table haying two laterall for receiving articles to mechanisms for the flap folders carried by connecting said mechanisms, and having an I second side and ers mounted on each leaf, folder actuating bottom,

nepee separable leaves e Wrapped; bottop flap foldenisms, and an operatin lever therefor FRAL K STREICH. PAUL E. FRANKE.

adjustable connection Withene of said mech- 

